Steven Nelson, CB, Oregon State
Height: 5-10. Weight: 197. 40 Time: 4.49. Projected Round (2015): 2-4.
4/25/15: Nelson notched 60 tackles, eight passes broken up and two interceptions in 2014. He was a solid cover corner and further proved it with a strong week at the Senior Bowl. Nelson ran with receivers to prevent separation and was good at battling contested catches. He helped himself in Mobile. Nelson followed it up with a good performance at the Combine.

8/27/14: Nelson was going to play in his home state at Georgia, but ended up going the junior college route. 2013 was Nelson's debut at Oregon State, and he had a great year with six interceptions, eight passes broken up and 62 tackles. Nelson could have produced more, but was a reserve to begin the season. He has some natural ballhawking skills.

Personal: Son of Steven Nelson, Sr. and Ylencia Jackson. Majored in sociology.

NFLCombine

Off. 40
4.49

Unoff. 40
4.49

10-Yd
1.57

Vertical
34.5

Broad
9-7

Arm
30 5/8

Bench
19

Sean Mannion, QB, Oregon State
Height: 6-5. Weight: 229. 40 Time: 5.14. Projected Round (2015): 4-6.
4/27/15: At the Senior Bowl, Mannion made some beautiful throws and missed on a number of others. That's basically the norm for this signal-caller. He has a big arm and pocket presence, but isn't consistent or accurate enough. Mannion was said to have an impressive pro day, but that is an environment where he will stand out as there is no pass rush or cornerbacks to worry about so his arm could take over.

Mannion completed 62 percent of his passes in 2014 for 3,164 yards with 15 touchdowns and eight interceptions. In a microcosm for his season, he had an ugly game against USC where he demonstrated significant ineffectiveness when forced to move off of his spot in the pocket.

Mannion was unable to get into rhythm in 2014 because his offensive line was awful. His receivers didn't step up to replace Brandin Cooks either. Even when his teammates executed well, Mannion missed some throws. Oregon State's offense was out of sync all year.

8/27/14: Over three seasons as a starter, Mannion has improved his passing skills. He lit up Pac-12 defenses in 2013 as he completed 66.3 percent of his passes for 4,662 yards with 37 touchdowns and 15 interceptions. Mannion needs to improve his anticipation. He started the season strong before having some ugly games in November against USC, Arizona State and Washington. He is prone to hold on to the ball too long as he took 25 sacks as a junior and 24 sacks as a freshman (12 as a sophomore).

In 2012, Mannion completed 65 percent of his passes for 2,446 yards with 15 touchdowns and 13 interceptions. He became the Beavers' starting quarterback in 2011. The redshirt freshman completed 65 percent of his passes for 3,328 yards with 16 touchdowns and 18 interceptions.

There are three things that Mannion must improve in order to have a shot at being a first-round pick. They are: accuracy, anticipation and footwork. Mannion's rough stretch last November can be attributed to those weaknesses. His interceptions came on inaccurate passes, and his feet weren't always in rhythm. He also needs to play better against his elite opponents and not just rack up numbers against weak teams.

Personal: Son of John and Inga. Sean is a coach's kid as his father is a high school football coach.

Obum Gwacham, DE, Oregon State
Height: 6-5. Weight: 251. 40 Time: 4.72. Projected Round (2015): 6-7.
4/25/15: Gwacham is a speed rusher who will probably have to move to outside linebacker in the NFL. In 2014, he had 27 tackles with four sacks and a forced fumble, although half of his sacks came against Hawaii. Gwacham didn't do enough to stand out at the Combine. Prior to his senior year, he was a backup.

Personal: Born in Onitsha, Nigeria. Son of Edwin and Carolina Gwacham.

NFLCombine

Off. 40
4.72

Unoff. 40
4.75

10-Yd
1.67

Vertical
36

Broad
10-1

Arm
DNP

Bench
22

3 Cone
7.28

Trevor Romaine, K, Oregon State
Height: 6-0. Weight: 199. Projected Round (2015): 7-FA.
4/25/15: Romaine missed the first two games of 2014 because he was academically ineligible. Romaine made eight-of-nine attempts with a long of 49 yards for the year. His miss came in the 30-yard range.

8/27/14: Romaine was 14-of-20 in 2013. The junior made one kick from 50+ and missed another. Romaine has some leg strength and showed good accuracy in 2012 as he made 16-of-18 attempts. His long field goal was 45 yards. However, Romaine missed three extra points in 54 attempts. He was 15-of-22 on his field goal tries in 2011.